code: def test_from_uirt(self):
      train_set = Dataset.from_uirt(self.uirt_data)
  
      self.assertTrue(len(train_set.timestamps) == 10)
  
imports: import unittest
  import numpy
  import numpy.testing
  from cornac.data import BasketDataset, Dataset, SequentialDataset, Reader
label_desc: Use image node_id 3 for calling the TestDataset obj's underlying member method code with example usage: obj.test_from_uirt() without return types